MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333
SHA3-384 hash: 813e0a39fda106eba0a9630785df6b69d489d14345da142709d4b0a2edee545f3b94ae235c10908c16ba2a1d5aaf7b5c
SHA1 hash: e82a055e52720d61108ac0ede59f0d36fc44eecb
MD5 hash: 6d5b3b6f2e941f32dd08d2de21b77bb5
humanhash: lemon-stream-august-hawaii
File name:product Inquiry and RFQ ART LTD.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:144'151 bytes
First seen:2024-05-28 07:04:48 UTC
Last seen:2024-05-28 07:24:40 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 768:zwAbZSibMX9gRWjtwAbZSibMX9gRWjtwAbZSibMX9gRWj9lSFcmEaWOVsAln7+yM:zwAlRkwAlRkwAlRKsFXqOVsaGxkhI
TLSH T101E3CF2DD34B02598F620376AB1B1E5542BDBA6EF38552B0306C437933EED3DA1252BD
Reporter abuse_ch
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
342
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333.doc
Verdict:
Malicious activity
Analysis date:
2024-05-28 07:23:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/928c6b5b-fa90-43fc-b756-b6368be4737c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665582373d0e5a324e765306win7simulatehigh_evasion
Tags:
Network Office Static Stealth Obfuscated
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
Query of malicious DNS domain
Launching a file downloaded from the Internet
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66558223458fabe8a95c4715/reports/25eadfd6-44b1-4924-b3e9-5c5b04869162/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333
Gathering data
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1448366
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1448366 Sample: product Inquiry and RFQ ART... Startdate: 28/05/2024 Architecture: WINDOWS Score: 100 64 www.primeplay88.org 2->64 66 parkingpage.namecheap.com 2->66 98 Snort IDS alert for network traffic 2->98 100 Multi AV Scanner detection for domain / URL 2->100 102 Malicious sample detected (through community Yara rule) 2->102 104 17 other signatures 2->104 10 WINWORD.EXE 336 13 2->10         started        12 taskeng.exe 1 2->12         started        signatures3 process4 process5 14 EQNEDT32.EXE 11 10->14         started        19 dfrgui.exe 10->19         started        21 EQNEDT32.EXE 10->21         started        23 FcIpiSQhQIcNQd.exe 12->23         started        dnsIp6 74 dukeenergyltd.top 188.114.96.3, 443, 49163 CLOUDFLARENETUS European Union 14->74 58 C:\Users\user\AppData\...\sharon93931.exe, PE32 14->58 dropped 60 C:\Users\user\AppData\...\sharonzx[1].exe, PE32 14->60 dropped 78 Installs new ROOT certificates 14->78 80 Office equation editor establishes network connection 14->80 82 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->82 25 sharon93931.exe 1 10 14->25         started        76 www.sqlite.org 45.33.6.223, 49165, 80 LINODE-APLinodeLLCUS United States 19->76 62 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 19->62 dropped 84 Tries to steal Mail credentials (via file / registry access) 19->84 86 Tries to harvest and steal browser information (history, passwords, etc) 19->86 88 Maps a DLL or memory area into another process 19->88 90 Queues an APC in another process (thread injection) 19->90 29 BkRjMNYldWJqUsdjyWSUexYarLmRZZ.exe 19->29 injected 32 firefox.exe 19->32         started        92 Machine Learning detection for dropped file 23->92 94 Adds a directory exclusion to Windows Defender 23->94 96 Injects a PE file into a foreign processes 23->96 34 powershell.exe 23->34         started        36 powershell.exe 23->36         started        38 schtasks.exe 23->38         started        40 2 other processes 23->40 file7 signatures8 process9 dnsIp10 54 C:\Users\user\AppData\...\FcIpiSQhQIcNQd.exe, PE32 25->54 dropped 56 C:\Users\user\AppData\Local\...\tmp4B34.tmp, XML 25->56 dropped 110 Machine Learning detection for dropped file 25->110 112 Uses schtasks.exe or at.exe to add and modify task schedules 25->112 114 Adds a directory exclusion to Windows Defender 25->114 116 Injects a PE file into a foreign processes 25->116 42 sharon93931.exe 25->42         started        45 powershell.exe 4 25->45         started        47 powershell.exe 4 25->47         started        49 schtasks.exe 25->49         started        68 www.99b6q.xyz 29->68 70 www.kinkynerdspro.blog 94.23.162.163, 49166, 49167, 49168 OVHFR France 29->70 72 3 other IPs or domains 29->72 118 Found direct / indirect Syscall (likely to bypass EDR) 29->118 file11 120 Performs DNS queries to domains with low reputation 68->120 signatures12 process13 signatures14 122 Maps a DLL or memory area into another process 42->122 51 BkRjMNYldWJqUsdjyWSUexYarLmRZZ.exe 42->51 injected 124 Installs new ROOT certificates 45->124 process15 signatures16 106 Maps a DLL or memory area into another process 51->106 108 Found direct / indirect Syscall (likely to bypass EDR) 51->108
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-05-27 01:40:28 UTC
File Type:
Document
Extracted files:
3
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n7e476uqqh6ascdndgoislapt4gmcydx5ijv242iecg3btuqmmzq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/240528-hwhgsabe47/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b025d105-2259-4860-8620-9741ccd89393
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6fc9cffa9081/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6fc9cffa9081fc09086d199c892c0f9f0cc16077ea135d7348208db0ce906333

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments